order_item.rb in unidom-order-2.0.1

- old
+ new
@@ -1,42 +1,48 @@
 ##
 # Order Item 是订单项。
 
-class Unidom::Order::OrderItem < Unidom::Order::ApplicationRecord
+module Unidom
+  module Order
 
-  self.table_name = 'unidom_order_items'
+    class OrderItem < ApplicationRecord
 
-  include Unidom::Common::Concerns::ModelExtension
-  include Unidom::Order::Concerns::AsAdjusted
+      self.table_name = 'unidom_order_items'
 
-  #validates :ordinal,         presence: true, numericality: { only_integer: true, greater_than: 0, less_than: 1_000_000_000 }
-  validates :unit_price,      presence: true, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 1_000_000_000 }
-  validates :quantity,        presence: true, numericality: { greater_than:             0, less_than_or_equal_to: 1_000_000_000 }
-  validates :purchase_amount, presence: true, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 1_000_000_000 }
-  validates :subtotal_amount, presence: true, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 1_000_000_000 }
+      include Unidom::Common::Concerns::ModelExtension
+      include Unidom::Order::Concerns::AsAdjusted
 
-  belongs_to :order,   class_name:  'Unidom::Order::Order'
-  belongs_to :ordered, polymorphic: true
-  belongs_to :placer,  polymorphic: true
+      #validates :ordinal,         presence: true, numericality: { only_integer: true, greater_than: 0, less_than: 1_000_000_000 }
+      validates :unit_price,      presence: true, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 1_000_000_000 }
+      validates :quantity,        presence: true, numericality: { greater_than:             0, less_than_or_equal_to: 1_000_000_000 }
+      validates :purchase_amount, presence: true, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 1_000_000_000 }
+      validates :subtotal_amount, presence: true, numericality: { greater_than_or_equal_to: 0, less_than_or_equal_to: 1_000_000_000 }
 
-  scope :order_is,   ->(order)   { where order:   order   }
-  scope :ordered_is, ->(ordered) { where ordered: ordered }
-  scope :placed_by,  ->(placer)  { where placer:  placer  }
+      belongs_to :order,   class_name:  'Unidom::Order::Order'
+      belongs_to :ordered, polymorphic: true
+      belongs_to :placer,  polymorphic: true
 
-  ##
-  # 订购商品 ordered ，放入订单 of 。订购者为 by ，缺省为订单的下单者。单价为 unit_price ，缺省值为 0 。数量为 quantity ，缺省值为 1。如：
-  # Unidom::Order::OrderItem.order! coca_cola, of: order, by: current_person, unit_price: 3.50, quantity: 2
-  def self.order!(ordered, of: nil, by: of.placer, unit_price: 0, quantity: 1)
-    item = of.items.ordered_is(ordered).placed_by(by).valid_at.alive.first
-    if item.present?
-      item.quantity        += quantity
-      item.unit_price      =  unit_price
-      item.purchase_amount =  item.unit_price*item.quantity
-      item.subtotal_amount =  item.purchase_amount+item.adjustments.valid_at.alive.sum(:amount).to_f
-      item.save!
-    else
-      ordinal = 1+of.items.valid_at.alive.maximum(:ordinal).to_i
-      of.items.create! ordered: ordered, placer: by, ordinal: ordinal, quantity: quantity, unit_price: unit_price, purchase_amount: unit_price*quantity, subtotal_amount: unit_price*quantity, opened_at: Time.now
-    end
-  end
+      scope :order_is,   ->(order)   { where order:   order   }
+      scope :ordered_is, ->(ordered) { where ordered: ordered }
+      scope :placed_by,  ->(placer)  { where placer:  placer  }
 
-end unless Unidom::Common::Neglection.namespace_neglected? 'Unidom::Order::OrderItem'
+      ##
+      # 订购商品 ordered ，放入订单 of 。订购者为 by ，缺省为订单的下单者。单价为 unit_price ，缺省值为 0 。数量为 quantity ，缺省值为 1。如：
+      # Unidom::Order::OrderItem.order! coca_cola, of: order, by: current_person, unit_price: 3.50, quantity: 2
+      def self.order!(ordered, of: nil, by: of.placer, unit_price: 0, quantity: 1)
+        item = of.items.ordered_is(ordered).placed_by(by).valid_at.alive.first
+        if item.present?
+          item.quantity        += quantity
+          item.unit_price      =  unit_price
+          item.purchase_amount =  item.unit_price*item.quantity
+          item.subtotal_amount =  item.purchase_amount+item.adjustments.valid_at.alive.sum(:amount).to_f
+          item.save!
+        else
+          ordinal = 1+of.items.valid_at.alive.maximum(:ordinal).to_i
+          of.items.create! ordered: ordered, placer: by, ordinal: ordinal, quantity: quantity, unit_price: unit_price, purchase_amount: unit_price*quantity, subtotal_amount: unit_price*quantity, opened_at: Time.now
+        end
+      end
+
+    end unless Unidom::Common::Neglection.namespace_neglected? 'Unidom::Order::OrderItem'
+
+  end
+end